def test_get_network_interface_speed(self, mock_ioctl, mock_unpack):
"""
The link speed is reported as unpacked from the ioctl() call.
"""
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_IP)
# ioctl always succeeds
mock_unpack.return_value = (100, False)
result = get_network_interface_speed(sock, b"eth0")
mock_ioctl.assert_called_with(ANY, ANY, ANY)
mock_unpack.assert_called_with("12xHB28x", ANY)
self.assertEqual((100, False), result)
def test_unplugged(self, mock_ioctl, mock_unpack):
"""
The link speed for an unplugged interface is reported as 0.
"""
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_IP)
# ioctl always succeeds
mock_unpack.return_value = (65535, False)
result = get_network_interface_speed(sock, b"eth0")
mock_ioctl.assert_called_with(ANY, ANY, ANY)
mock_unpack.assert_called_with("12xHB28x", ANY)
self.assertEqual((0, False), result)
sock.close()
def test_get_network_interface_speed_not_permitted(self, mock_ioctl):
"""
In some cases (lucid seems to be affected), the ioctl() call is not
allowed for non-root users. In that case we intercept the error and
not report the network speed.
"""
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_IP)
theerror = IOError()
theerror.errno = 1
theerror.message = "Operation not permitted"
# ioctl always raises
mock_ioctl.side_effect = theerror
result = get_network_interface_speed(sock, b"eth0")
mock_ioctl.assert_called_with(ANY, ANY, ANY)
self.assertEqual((-1, False), result)
def test_get_network_interface_speed_not_supported(self, mock_ioctl):
"""
Some drivers do not report the needed interface speed. In this case
an C{IOError} with errno 95 is raised ("Operation not supported").
If such an error is rasied, report the speed as -1.
"""
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM,
socket.IPPROTO_IP)
theerror = IOError()
theerror.errno = 95
theerror.message = "Operation not supported"
# ioctl always raises
mock_ioctl.side_effect = theerror
result = get_network_interface_speed(sock, b"eth0")
mock_ioctl.assert_called_with(ANY, ANY, ANY)
self.assertEqual((-1, False), result)
